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How to Double the Lifespan of Silicone Molds for Facade Stone: Expert Tips from the Manufacturer

2026-08-21

Últimas notícias da empresa sobre How to Double the Lifespan of Silicone Molds for Facade Stone: Expert Tips from the Manufacturer

For any artificial stone manufacturing plant, profitability hinges on a single metric: how many casting cycles a single silicone mold can endure before micro-cracks or geometry loss occur.

As a direct producer of industrial liquid silicone series, we share our professional operating protocols.

  1. Precise Catalyst Ratios (Component B)

    An excess or deficiency of curing agent drastically reduces the physical and mechanical properties of the cured rubber. Always use calibrated electronic scales. Standard RTV-2 ratios typically run at 100:2 by weight.

  2. Mandatory Vacuum Degassing

    Even with self-degassing liquid silicones, microscopic air bubbles can remain trapped in the mixture. Placing the compound in a vacuum chamber for 1–2 minutes prevents pinholes on the working surface of your wall molds.

  3. Correct Release Agents

    When casting cement or gypsum, apply specialized wax- or silicone-based release agents to protect the matrix from alkaline corrosion and abrasive wear.